Here is an example of a very critical analysis of a 5 Hour Energy Commercial that is no longer found on the internet any longer because of articles like this:
Tearing Down 5 Hour Energy Argument

Great Commercial Website

https://www.youtube.com/watch?v=K1wDUiHwyBk

http://www.nbcnews.com/video/your-healthy-family/30645024#30645024Hydroxycut Exposed